Tips for you OP:
Buy anti bac washing detergent and then you can put all the clothes on 30minute washes. Tomorrow you could do 8 washes easily.
-Walk around the house with a bin bag and collect all rubbish.
-walk around the house and collect all the dishes/mugs - then do the washing up.
-get a bucket with flash and then wipe down all the kitchen sides/cupboard doors (doesn’t take 2 minutes). Empty kitchen bins and make sure that the rubbish is in the outside bins.
-put all the clutter on sofas/tables/beds and run around the house with a Hoover.
-using flash wipe down the bathroom sink/bath/toilet.
-sort out the kids room starting with the bed. Put on clean bedding. The kids bedrooms don’t need to be perfectly organised just hygienic. Using a cloth wipe down all the sides of the bedrooms.
-if you’ve got pets makes sure the litter etc is clean. If you think they’ve made a mess on the carpets hire a carpet cleaner/steam cleaner/scrub it with hot soapy water.
-wash the bathroom/kitchen floor.
-clean the fridge of out of date food etc.
-run around the house tidying ‘big’ things first. By this point you’ll already have the natural adrenaline and be wanting to finish the ‘job’.
You can do it OP. Do it for your kids as they don’t have a choice to live in dirt.